Comparison Porsche 911 (991 II) Turbo 3.8 (540 Hp) PDK 4x4 & Jeep Grand Cherokee III (WK) 4.7i V8 (309 Hp) 4WD Automatic
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| Brand: | Porsche | Jeep |
| Model: | 911 | Grand Cherokee |
| Generation: | 911 (991 II) | Grand Cherokee III (WK) |
| Engine / modification: | Turbo 3.8 (540 Hp) PDK 4x4 | 4.7i V8 (309 Hp) 4WD Automatic |
| Production start: | 2015 year | 2008 year |
| Production end: | 2010 year | |
| Coupe type: | Coupe | Off-road vehicle |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 2+2 | 5 |
| Fuel consumption / economy - urban: | 11.8 l/100 km | 16.8 l/100 km |
| Fuel consumption / economy - extra urban: | 7.5 l/100 km | 12.4 l/100 km |
| Fuel consumption / economy - combined: | 9.1 l/100 km | 15.7 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.31 | 0.41 |
| Fuel tank volume: | 68 l | 80 l |
| Emission standard: | EURO VI | |
| CO2 emissions: | 212 g/km | |
| Power: | 540 hp | 309 hp |
| Max power in: | 6400 rpm. | 5650 rpm. |
| Maximum speed: | 320 km/h | |
| Acceleration from 0 to 100 km/h: | 3.0 sec | |
| Torque: | 710 Nm/2250-4000 rpm. | 453 Nm @ 3950 rpm. |
| Engine position: | Rear, longitudinal | Front, longitudinal |
| Engine displacement: | 3800 cm3 | 4701 cm3 |
| Engine oil capacity: | 10.4 l | |
| Fuel System: | Direct injection | Multi-point injection |
| Aspiration / Turbine: | BiTurbo | |
| Position of cylinders: | Boxer | V engine |
| Valvetrain: | SOHC | |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 9.8 | 9.8 |
| Piston Stroke: | 77.5 mm | 86.5 mm |
| Cylinder Bore: | 102 mm | 93 mm |
| Wheel Drive: | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 7 PDK | 5 |
| Length: | 4507 mm | 4775 mm |
| Width: | 1880 mm | 1861 mm |
| Width including mirrors: | 1978 mm | |
| Height: | 1297 mm | 1749 mm |
| Wheelbase: | 2450 mm | 2781 mm |
| Front track: | 1541 mm | 1575 mm |
| Rear (Back) track: | 1590 mm | 1575 mm |
| Ride height(clearance): | 210 mm | |
| Approach angle: | 32.3 ° | |
| Departure angle: | 27.5 ° | |
| Ramp angle: | 20.4 ° | |
| Minimum volume of Luggage (trunk): | 115 l | |
| Maximum amount of Luggage (trunk): | 260 l | |
| Front suspension: | Independent type McPherson | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2010 kg | 2767 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1595 kg | 2105 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 11.3 m | |
| Tire size: | 245/35 ZR 20; 305/30 ZR 20 | 245/65 R17 |
| Wheel rims size: | 9 J x 20; 11.5 J x 20 | R17 |